Luxing Ba! Jingdizhiwa

Synopsis

A frog at the bottom of the well, Will, came to the human world, pretending to be a cursed prince, and helped the little princess Sophia in the castle smash the conspiracy of the emperor Bent, succeeding in inheriting the throne and becoming a queen. And he returned to the well with her lover Laura, telling her companion that the world outside the well was very big. (translated from douban)